joabj writes "A streaming music service was available 100 years ago by telephone, through the Teleharmonium. A primitive version of Photoshopping was possible with Black Mirrors in the 18th century. While technologies and media platforms go obsolete at an ever more rapid pace, the ideas they engender never really die. They get absorbed by newer technologies, or are at least preserved by hobbyists (carrier pigeons) or niche markets (Morse Code), argued NYU postdoctoral researcher Finn Brunton at the USENIX conference. Myself, I'm waiting for an update to the visual cortex-stimulating Dream Machines of the 1960s."